CN101493613A - Liquid crystal display panel and image display system using the liquid crystal display panel - Google Patents
Liquid crystal display panel and image display system using the liquid crystal display panel Download PDFInfo
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- CN101493613A CN101493613A CN 200810008707 CN200810008707A CN101493613A CN 101493613 A CN101493613 A CN 101493613A CN 200810008707 CN200810008707 CN 200810008707 CN 200810008707 A CN200810008707 A CN 200810008707A CN 101493613 A CN101493613 A CN 101493613A
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- shading construction
- shading
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Abstract
The invention provides a liquid crystal display panel and an image display system which uses the liquid crystal display panel; the liquid crystal display panel comprises a light-transmission substrate with a first surface and a second surface; a grid insulation layer which is arranged above the first surface of the light-transmission substrate; and a grid lead structure and a first shielding structure which are made of the same material, are arranged above the grid insulation layer and have no electric contact; furthermore, the first shielding structure is provided with a gap; the liquid crystal display panel also comprises a passage layer and a second shielding structure which are made of the same material and arranged above the first surface of the light-transmission substrate and below the grid insulation layer; furthermore, the second shielding structure is arranged below the gap of the first shielding structure. The liquid crystal display panel and the image display system can effectively solve the light leakage problem without increasing the process or the preparation cost.
Description
Technical field
The present invention relates to a kind of display panels and use the image display system of this display panels, relate in particular to a kind of image display system that has the display panels of shading construction and use this display panels.
Background technology
Continue luminous state because Backlight For Liquid Crystal Display Panels is in, and the variation of light and shade mainly is by carrying out with the degree of the control of the pixel electrode on display panels liquid crystal shading on the display.But arrive whole liquid crystal because of pixel electrode is uncontrollable, and the zone of failing to control to just can't change its brightness, and then influence the performance of its contrast.
But for LCD, contrast is a considerable performance data, so everybody develops various technological means and improve at this defective invariably.Wherein topmost means are that the light that the zone scattered out that utilizes all kinds of light screening materials that pixel electrode is failed to control to covers, and then the performance that improves contrast, and common light screening material is in order to finish the light tight metal (usually based on aluminium) of common ground lead and grid lead structure in the panel.That is to say, in the manufacture process of display panels, when forming common ground lead 11 and grid lead and constructing patterns such as 12, also form shading construction 13 in position in addition in order to shading, this shading construction 13 mainly is to exist in suspension joint (floating) mode, just do not contact, and its synoptic diagram is asked for an interview Fig. 1 (a), Fig. 1 (b) with any conductor in the panel.
Wherein Fig. 1 (b) is the tectonic profile synoptic diagram that obtains along A-A ' line segment among Fig. 1 (a), find out by knowing among Fig. 1 (b), the position of shading construction 13 mainly is to be arranged at transparent glass substrate 10 tops, and be positioned at the below of dielectric layer 19 and data line structure 14, in order to strengthen the pass through shaded effect in zone of data line (data line), but because of shading construction 13 normally utilizes metal level to define in same photo-marsk process to finish with common earth lead 11 and grid lead structure 12 simultaneously, therefore the possibility for avoiding waiting other conductors to have to contact with common earth lead 11 and grid lead structure 12, shading construction 13 can't extend to the interlaced area 15 of data line structure 14 and common earth lead 11 and grid lead structure 12, therefore in conventional construction, shading construction 13 has breach, just the interlaced area shown in the figure 15.And herein be the quite serious zone of light leak, and then the performance of havoc element contrast.
For eliminating this problem, traditional technological means is to set up silicon nitride layer (SiNx film schemes not shown) on data line structure 14, in order to reduce the degree of light leak.But thus, just must in the manufacture process of display panels, additionally increase by one technology and be used on data line structure 14, finishing this silicon nitride layer, therefore additionally increased manufacturing cost.And how under the prerequisite that does not increase technology and manufacturing cost, but can reduce the degree of light leak effectively, be fundamental purpose of the present invention.
Summary of the invention
The present invention is a kind of display panels, and it comprises: transparent substrates has first and second; Gate insulator is finished this first top in this transparent substrates; The grid lead structure and first shading construction, both finish on this gate insulator by identical material or same technology, and do not have electrically contact between the two, and this first shading construction has breach; And the channel layer and second shading construction, finish under this first top and this gate insulator of this transparent substrates by identical material, and this second shading construction is arranged at the below of this breach of this first shading construction.
According to above-mentioned conception, in the display panels of the present invention, this channel layer is finished under this gate insulator by the material of polysilicon with this second shading construction.
According to above-mentioned conception, in the display panels of the present invention, this grid lead structure is finished on this first top and this gate insulator of this transparent substrates by the material of light tight metal with this first shading construction, this breach of this first shading construction can comprise the data line structure and this grid lead is constructed formed interlaced area, and this second shading construction is arranged at the below of this interlaced area.
According to above-mentioned conception, in the display panels of the present invention, this transparent substrates is the transparent glass substrate, and this first top of this transparent glass substrate also has cushion, is located between this channel layer, this second shading construction and this transparent glass substrate.
According to above-mentioned conception, in the display panels of the present invention, above this first of this transparent glass substrate, also have the common ground lead, it is finished on this gate insulator by the material identical with this grid lead structure and this first shading construction.
According to above-mentioned conception, in the display panels of the present invention, this breach of this first shading construction can comprise data line structure and this grid lead structure and the formed interlaced area of this common ground lead, and this second shading construction is arranged at the below of this interlaced area, and between this cushion and this gate insulator.
According to above-mentioned conception, display panels of the present invention also comprises: the contact hole wire configurations is formed at this first top of this transparent substrates; And the 3rd shading construction, finish this first top with this second shading construction by identical material in this transparent substrates, the 3rd shading construction is arranged at the below of this contact hole wire configurations, and the sectional area of the 3rd shading construction is greater than the sectional area of this contact hole wire configurations.
According to above-mentioned conception, in the display panels of the present invention, this channel layer, this second shading construction are finished under this first top and this gate insulator of this transparent substrates by the material of polysilicon with the 3rd shading construction.
Another aspect of the present invention is a kind of display panels also, and it comprises: transparent substrates has first and second; The contact hole wire configurations is formed at this first top of this transparent substrates; And channel layer and the 3rd shading construction, finish this first top in this transparent substrates by identical material or in same technology, the 3rd shading construction is arranged at the below of this contact hole wire configurations, and its sectional area is greater than the sectional area of this contact hole wire configurations.
According to above-mentioned conception, in the display panels of the present invention, this channel layer is finished by the material of polysilicon with the 3rd shading construction.
According to above-mentioned conception, display panels of the present invention wherein also comprises: gate insulator, finish this first top in this transparent substrates; The grid lead structure and first shading construction, both finish on this gate insulator by identical material, and do not have electrically contact between the two; And second shading construction, finish under this first top and this gate insulator of this transparent substrates by the material identical, and this second shading construction is arranged at the below of this breach of this first shading construction with the 3rd shading construction.
According to above-mentioned conception, in the display panels of the present invention, this channel layer, this second shading construction are finished under this first top and this gate insulator of this transparent substrates by the material of polysilicon with the 3rd shading construction, this breach of this first shading construction can comprise the data line structure and this grid lead is constructed formed interlaced area, and this second shading construction is arranged at the below of this interlaced area.
According to above-mentioned conception, in the display panels of the present invention, this grid lead structure is finished this first top in this transparent substrates with this first shading construction by the material of light tight metal, and does not have between the two electrically and contact.
According to above-mentioned conception, in the display panels of the present invention, this transparent substrates is the transparent glass substrate, and this first top of this transparent glass substrate also has: cushion, be located between this channel layer, this second shading construction and this transparent glass substrate.
According to above-mentioned conception, also have the common ground lead in the display panels of the present invention, this common ground lead is finished on this gate insulator by the material identical with this grid lead structure and this first shading construction.
According to above-mentioned conception, in the display panels of the present invention, this breach of this first shading construction can comprise data line structure and this grid lead structure and the formed interlaced area of this common ground lead, and this second shading construction is arranged at the below of this interlaced area, and between this cushion and this gate insulator.
Of the present invention is a kind of image display system more on the one hand, and it comprises: above-mentioned display panels with shading construction; And
Power supply unit is coupled to aforementioned display panel and provides power supply to aforementioned display panel.
According to above-mentioned conception, image display system of the present invention, wherein aforementioned image display system are mobile phone, digital camera, personal digital assistant, laptop, desktop computer, TV, GPS, automobile-used display, aviation display, digital photo-frame (Digital Photo Frame) or Portable DVD projector.
According to above-mentioned conception, in the image display system of the present invention, aforementioned display panel is LCD or organic LED display panel.
The present invention can solve the light leak problem effectively under the prerequisite that does not increase operation and manufacturing cost.
Description of drawings
The present invention can more in depth understand by following accompanying drawing and explanation thereof:
Fig. 1 (a) is the distributing position synoptic diagram of shading construction in the conventional construction.
The diagrammatic cross-section of Fig. 1 (b) for drawing through the zone according to A-A ' line segment among Fig. 1 (a).
Fig. 2 is the sectional view of display panels upper film transistor unit.
The structure of liquid crystal display panel synoptic diagram that Fig. 3 is finished for utilization the technology of the present invention means.
The diagrammatic cross-section of Fig. 4 (a) for drawing through the zone according to B-B ' line segment among Fig. 3.
The diagrammatic cross-section of Fig. 4 (b) for drawing through the zone according to C-C ' line segment among Fig. 3.
Fig. 5 is the image display system synoptic diagram of another embodiment of using the technology of the present invention means and being finished.
Wherein, description of reference numerals is as follows:
10 transparent glass substrates, 19 dielectric layers
11 common ground leads, 12 grid leads structure
13 shading constructions, 14 data line structures
15 interlaced area, 20 transparent glass substrates
21 cushions, 22 polysilicon channel layers
23 gate insulators, 24 grid leads structure
25 interlayer dielectric layers
31 common ground leads, 32 grid leads structure
33 first shading constructions, 34 data line structures
35 interlaced area, 36 second shading constructions
37,38 contact hole wire configurations 39 the 3rd shading construction
100 LCD, 600 image display systems
500 power supply units
Embodiment
And be the defective that can improve above-mentioned conventional art means, the present invention is not increasing under the preceding topic of processing step, and then develops and use the technological means that polysilicon layer is finished light-shielding structure instead.Because in the manufacture process of low-temperature polysilicon film transistor display panels, the technology of utilizing polysilicon to finish thin-film transistor element is just arranged originally, for example can know in the part sectioned view by display panels upper film transistor unit shown in Figure 2 and find out, be formed with cushion 21 on the transparent glass substrate 20 respectively in regular turn, polysilicon channel layer 22, gate insulator 23, grid lead structure 24 and interlayer dielectric layer 25 etc., and 24 of polysilicon channel layer 22 and grid lead structures have gate insulator 23, not can with the common ground lead 11 shown in Fig. 1 and grid lead structure 12 wait other conductors to have to contact may, so the shading construction finished with polysilicon layer of the present invention will may extend to the interlaced area 15 among Fig. 1.And the present invention does not need to increase in addition the number of photo-marsk process, gets final product and only need change the optical mask pattern that originally is used for defining polysilicon channel layer 22.
For can the above-mentioned technological means of clearer understanding, can see also Fig. 3 again, the structure of liquid crystal display panel synoptic diagram that it is finished for utilization the invention described above technological means, wherein common ground lead 31 and grid lead structure 32 and first shading construction 33 is in same technology, finish by lighttight metal level, and be to improve the breach that first shading construction 33 can't extend to, the light leak defective in the interlaced area 35 of data line structure 34 and common earth lead 31 and grid lead structure 32 for example, the present invention just is provided with second shading construction 36 below interlaced area 35 places.And this second shading construction 36 can finish with the material identical with as shown in Figure 2 polysilicon channel layer 22, and can be arranged between above-mentioned cushion 21 and the gate insulator 23.Therefore second shading construction 36 can not produce any electrical contact with common ground lead 31 and grid lead structure 32 with data line structure 34, and itself and polysilicon channel layer 22 can be finished in same technology in the lump, so do not need to utilize additional technique just can finish, and then can reach the purpose of improving the prior art defective effectively.
In addition, in traditional means, contact hole wire configurations 37,38 and data line structure 34 are finished in same technology, and contact hole wire configurations 37,38 places be also because of can't being provided with the problem that first shading construction 33 produces leakage of light, and then the contrast of panel can't be improved.And be effective head it off, the present invention just is provided with the 3rd shading construction of finishing with polysilicon 39 at this place.And the 3rd shading construction 39 is characterised in that the sectional area of its sectional area greater than this contact hole wire configurations 37,38, and the 3rd shading construction 39 also be can utilize with the polysilicon of these second shading construction, 36 identical materials to finish, therefore also only need change the optical mask pattern that is used for defining polysilicon channel layer can be integrated in the technology simultaneously, and does not need to utilize additional technique.
Fig. 4 (a), figure (b) is for knowing the diagrammatic cross-section that gives expression to structural attitude of the present invention, wherein Fig. 4 (a) is the diagrammatic cross-section of drawing through the zone according to B-B ' line segment among Fig. 3, Fig. 4 (b) then is the diagrammatic cross-section of drawing through the zone according to C-C ' line segment among Fig. 3, can be known by these two figure to give expression to transparent glass substrate 20, cushion 21, polysilicon channel layer 22, gate insulator 23, common ground lead 31, grid lead structure 32, data line structure 34, contact hole wire configurations 37, contact hole wire configurations 38, second shading construction 36, the structural relation of the 3rd shading construction 39 and interlayer dielectric layer 25.And can know by figure and to find out that the 3rd shading construction 39 is characterised in that the sectional area of its sectional area greater than this contact hole wire configurations 37,38, therefore can effectively reduce the problem of this zone light leak, and then improve the defective of conventional art means.
In sum, the present invention utilizes second above-mentioned shading construction and the 3rd shading construction effectively to improve the defective of light leak in the traditional means, and second shading construction and the 3rd shading construction can be respectively with structure originally in channel layer use identical material to finish, also can therefore can effectively save technology number and manufacturing cost with finishing in order to the same technology that defines this channel layer.
See also Fig. 5 again, it is the image display system synoptic diagram of another embodiment of using the technology of the present invention means and being finished.In the present embodiment, mainly disclose image display system 600, it can comprise LCD 100 and power supply unit 500.Wherein this LCD 100 is to be that main body is finished with the display panels among above-mentioned Fig. 3, Fig. 4, and this power supply unit 500 is coupled to LCD 100 to provide electric energy to LCD 100.This image display system 600 can be: any during mobile phone, digital camera, personal digital assistant, laptop, desktop computer, TV, GPS (GPS), automobile-used display, aviation are installed with display, digital frame or Portable DVD projector etc.In addition, the technology of the present invention means can be migrated to the display panel of other kinds, for example with Organic Light Emitting Diode (Organic Light Emitting Diode, the display panel of OLED) finishing.So the present invention can carry out various changes by those skilled in the art, yet does not all break away from the protection domain of claims.
Claims (10)
1. display panels, it comprises:
Transparent substrates has first and second;
Gate insulator is finished this first top in this transparent substrates;
The grid lead structure and first shading construction are finished on this gate insulator by identical material, and do not have electrically contact between the two, and this first shading construction has breach; And
The channel layer and second shading construction finish under this first top and this gate insulator of this transparent substrates by identical material, and this second shading construction are arranged at the below of this breach of this first shading construction.
2. display panels as claimed in claim 1, wherein this channel layer is finished under this gate insulator by the material of polysilicon with this second shading construction.
3. display panels as claimed in claim 1, wherein this grid lead structure is finished on this first top and this gate insulator of this transparent substrates by the material of light tight metal with this first shading construction, this breach of this first shading construction can comprise the data line structure and this grid lead is constructed formed interlaced area, and this second shading construction is arranged at the below of this interlaced area.
4. display panels as claimed in claim 3, wherein also have the common ground lead above this first of this transparent glass substrate, this common ground lead is finished on this gate insulator by the material identical with this grid lead structure and this first shading construction.
5. display panels as claimed in claim 4, wherein this breach of this first shading construction can comprise data line structure and this grid lead structure and the formed interlaced area of this common ground lead, and this second shading construction is arranged at the below of this interlaced area, and between this cushion and this gate insulator.
6. display panels as claimed in claim 1 wherein also comprises:
The contact hole wire configurations is formed at this first top of this transparent substrates; And
The 3rd shading construction is finished this first top in this transparent substrates with this second shading construction by identical material, and the 3rd shading construction is arranged at the below of this contact hole wire configurations, and its sectional area is greater than the sectional area of this contact hole wire configurations.
7. display panels as claimed in claim 6, wherein this channel layer, this second shading construction are finished under this first top and this gate insulator of this transparent substrates by the material of polysilicon with the 3rd shading construction.
8. display panels, it comprises:
Transparent substrates has first and second;
The grid lead structure and first shading construction are finished this first top in this transparent substrates by same technology, and do not have between the two electrically and contact, and this first shading construction has breach; And
The channel layer and second shading construction finish this first top in this transparent substrates by same technology, and this second shading construction are arranged at the below of this breach of this first shading construction.
9. display panels, it comprises:
Transparent substrates has first and second;
The contact hole wire configurations is formed at this first top of this transparent substrates; And
Channel layer and the 3rd shading construction are finished this first top in this transparent substrates by identical material, and the 3rd shading construction is arranged at the below of this contact hole wire configurations, and its sectional area is greater than the sectional area of this contact hole wire configurations.
10. image display system comprises:
As claim 1,8 or 9 each described display panels wherein; And
Power supply unit, be coupled to described display panel and provide power supply to described display panel, wherein said image display system is mobile phone, digital camera, personal digital assistant, laptop, desktop computer, TV, GPS, automobile-used display, aviation display, digital photo-frame or Portable DVD projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810008707 CN101493613B (en) | 2008-01-24 | 2008-01-24 | Liquid crystal display panel and image display system using the liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810008707 CN101493613B (en) | 2008-01-24 | 2008-01-24 | Liquid crystal display panel and image display system using the liquid crystal display panel |
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| Publication Number | Publication Date |
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| CN101493613A true CN101493613A (en) | 2009-07-29 |
| CN101493613B CN101493613B (en) | 2012-12-12 |
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| CN 200810008707 Active CN101493613B (en) | 2008-01-24 | 2008-01-24 | Liquid crystal display panel and image display system using the liquid crystal display panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513459A (en) * | 2013-10-14 | 2014-01-15 | 北京京东方光电科技有限公司 | Array substrate and preparing method thereof, display device and preparing method thereof |
| CN106206622A (en) * | 2016-09-23 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of array base palte and preparation method thereof, display device |
| CN108317802A (en) * | 2017-12-16 | 2018-07-24 | 山东华晶玻璃有限公司 | Transparence display glass accelerator control system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007188936A (en) * | 2006-01-11 | 2007-07-26 | Epson Imaging Devices Corp | Display device |
| CN100428481C (en) * | 2007-04-28 | 2008-10-22 | 上海广电光电子有限公司 | Thin film transistor array base board and its repairing method |
-
2008
- 2008-01-24 CN CN 200810008707 patent/CN101493613B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513459A (en) * | 2013-10-14 | 2014-01-15 | 北京京东方光电科技有限公司 | Array substrate and preparing method thereof, display device and preparing method thereof |
| CN106206622A (en) * | 2016-09-23 | 2016-12-07 | 京东方科技集团股份有限公司 | A kind of array base palte and preparation method thereof, display device |
| CN106206622B (en) * | 2016-09-23 | 2019-05-10 | 京东方科技集团股份有限公司 | A kind of array substrate and preparation method thereof, display device |
| US10312271B2 (en) | 2016-09-23 | 2019-06-04 | Boe Technology Group Co., Ltd. | Array substrate, manufacturing method thereof and display device |
| CN108317802A (en) * | 2017-12-16 | 2018-07-24 | 山东华晶玻璃有限公司 | Transparence display glass accelerator control system |
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| Publication number | Publication date |
|---|---|
| CN101493613B (en) | 2012-12-12 |
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